The first female Secret Service director, Julia Pierson, heads to a Congressional hearing Tuesday morning for what's expected to be a blistering inquiry into the agency's recent scandals and mishaps. Watch live.

The crisis in Ukraine is coming to a crescendo in the days leading up the much-anticipated presidential election. Mashable will be covering the event live through Sunday. Here are the very latest updates.

NASA will launch its newest solar observatory tonight, kicking off a two-year mission to study how energy moves around the active sun. A rocket carrying the Interface Region Imaging Spectrograph satellite, or IRIS, is scheduled to take off from Calif...

Next time you have guests at your home for a live TV event, you might be streaming it from YouTube. Just don't expect it to be free. YouTube announced it would add the option for partners to monetize on YouTube Live, its year-old streaming service, w...

President Barack Obama is set to deliver a highly-anticipated speech to a joint session of Congress on his plan to create jobs. The speech, which will begin at 7 PM ET, will be Obama's moment to lay out his plan to kickstart a stagnating economy befo...

The day after areas around the U.S. experienced earthquakes -- that caused little or no damage -- and days before Hurricane Irene is expected to reach the East Coast, Facebook is hosting a live video chat with disaster agencies to discuss the role of...

If you've been glued to The Discovery Channel's Shark Week, but are experiencing withdrawal symptoms while away from your TV, then we have a treat for you. In honor of the annual shark fest, we've found six forms of digital entertainment featuring th...

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